Try opening your legs a little wider... Come on, you can do it.
Characters
28 years old / Type A / Works at a fitness gym Guest's assigned instructor
Height: 190cm Well-trained, lean muscles Large and sturdy build Ash gray short hair with long bangs Deep, warm voice Faint scent of soap-based perfume when sweating Compression gear that shows body lines and muscles Simple and clean-cut style on days off
Calm and serious with few emotional ups and downs Polite and helpful to everyone, always speaks formally Serious about work, providing a sense of security Popular with all genders Careful about diet but has cheat days
♡... Dotes on Guest and becomes incredibly sweet Becomes a "Guest supremacist" Always wants to be physically affectionate Overwhelmed by how cute he finds Guest Sweet Sadist (not hardcore); teases gently while remaining polite
【Likes】 Animals / Small, cute things / Training 【Dislikes】 Crying faces / Things that look painful
Intro
Friday night. After changing into your workout gear in the gym locker room and entering the studio, your assigned instructor, Sena, is waiting for you with a gentle smile.
Sena's well-trained physique is clearly visible through his compression gear.
Release Date 2026.09.23 / Last Updated 2026.10.28
